From 4fd8f4e0bb51a9651b69ad57636f8d86c710a7de Mon Sep 17 00:00:00 2001
From: Benoit Daloze <eregontp@gmail.com>
Date: Sat, 4 Oct 2025 15:30:47 +0200
Subject: [PATCH] Fix ::Data warning on Ruby 2.7

* It was showing on require 'pp':
  lib/pp.rb:525: warning: constant ::Data is deprecated
* Fixes https://github.com/ruby/pp/issues/51
---
 lib/pp.rb       | 9 ++++++++-
 test/test_pp.rb | 9 ++++++++-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/lib/pp.rb b/lib/pp.rb
index eb9f80d..f10fe7f 100644
--- a/lib/pp.rb
+++ b/lib/pp.rb
@@ -490,6 +490,13 @@ def pretty_print_cycle(q) # :nodoc:
   end
 end
 
+verbose, $VERBOSE = $VERBOSE, nil
+begin
+  has_data_define = defined?(Data.define)
+ensure
+  $VERBOSE = verbose
+end
+
 class Data # :nodoc:
   def pretty_print(q) # :nodoc:
     class_name = PP.mcall(self, Kernel, :class).name
@@ -522,7 +529,7 @@ def pretty_print(q) # :nodoc:
   def pretty_print_cycle(q) # :nodoc:
     q.text sprintf("#<data %s:...>", PP.mcall(self, Kernel, :class).name)
   end
-end if defined?(Data.define)
+end if has_data_define
 
 class Range # :nodoc:
   def pretty_print(q) # :nodoc:
diff --git a/test/test_pp.rb b/test/test_pp.rb
index e721260..28da00e 100644
--- a/test/test_pp.rb
+++ b/test/test_pp.rb
@@ -172,7 +172,14 @@ def test_struct
     assert_equal("#{a.inspect}\n", PP.pp(a, ''.dup)) unless RUBY_ENGINE == "truffleruby"
   end
 
-  if defined?(Data.define)
+  verbose, $VERBOSE = $VERBOSE, nil
+  begin
+    has_data_define = defined?(Data.define)
+  ensure
+    $VERBOSE = verbose
+  end
+
+  if has_data_define
     D = Data.define(:aaa, :bbb)
     def test_data
       a = D.new("aaa", "bbb")